911
FNCA52 TJSJ 261930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST TUE MAY 26 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-270800-
SOUTHEAST COASTAL PLAINS-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 40 40
TEMP (24H TREND) 73 (-1) 88 (+3) 74 90
RH % (24H TREND) 91 (+2) 57 (-6) 90 50
WIND 20FT/EARLY(MPH) E 14 E 17 E 16 E 14
WIND 20FT/LATE(MPH) E 12 E 20 E 12 SE 14
MIXING HGT(FT-AGL/MSL) 4540 4720
TRANSPORT WND (MPH) E 16 E 14
VENT RATE (KT-FT) 63560 56640
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-270800-
SOUTHERN HILLS-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 50 40 50
TEMP (24H TREND) 70 (-2) 84 (+3) 70 87
RH % (24H TREND) 98 (+3) 68 (-8) 96 61
WIND 20FT/EARLY(MPH) E 14 E 13 E 13 E 11
WIND 20FT/LATE(MPH) E 12 E 14 E 12 SE 11
MIXING HGT(FT-AGL/MSL) 5190 5300
TRANSPORT WND (MPH) E 16 SE 12
VENT RATE (KT-FT) 72660 53000
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-270800-
NORTH COASTAL PLAINS-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 50 40 40
TEMP (24H TREND) 73 (-1) 86 (+1) 73 88
RH % (24H TREND) 98 (+3) 70 (-5) 96 62
WIND 20FT/EARLY(MPH) E 19 E 16 E 18 E 13
WIND 20FT/LATE(MPH) E 13 E 20 E 13 E 14
MIXING HGT(FT-AGL/MSL) 4080 4890
TRANSPORT WND (MPH) E 17 E 13
VENT RATE (KT-FT) 61200 53790
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-270800-
NORTHERN HILLS-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 20 70 50 60
TEMP (24H TREND) 70 (-2) 86 (+3) 71 87
RH % (24H TREND) 99 (+2) 72 (-3) 97 65
WIND 20FT/EARLY(MPH) E 17 E 14 E 16 E 12
WIND 20FT/LATE(MPH) E 10 E 18 E 11 E 12
MIXING HGT(FT-AGL/MSL) 5000 5580
TRANSPORT WND (MPH) E 14 E 9
VENT RATE (KT-FT) 60000 44640
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-270800-
WEST COAST-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 60 60 50
TEMP (24H TREND) 73 (0) 89 (+1) 73 91
RH % (24H TREND) 96 (+3) 66 (-4) 95 62
WIND 20FT/EARLY(MPH) E 16 E 13 E 14 E 12
WIND 20FT/LATE(MPH) E 11 E 14 E 11 E 12
MIXING HGT(FT-AGL/MSL) 4640 4560
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 46400 41040
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-270800-
EASTERN INTERIOR-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 60 40 40
TEMP (24H TREND) 71 (-1) 84 (+2) 72 87
RH % (24H TREND) 99 (+1) 72 (-5) 96 63
WIND 20FT/EARLY(MPH) E 16 E 14 E 14 E 12
WIND 20FT/LATE(MPH) E 13 E 14 E 13 E 12
MIXING HGT(FT-AGL/MSL) 4430 5770
TRANSPORT WND (MPH) E 17 SE 13
VENT RATE (KT-FT) 66450 63470
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-270800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 40 40
TEMP (24H TREND) 69 (-1) 81 (+3) 69 83
RH % (24H TREND) 100 (+1) 74 (-7) 99 67
WIND 20FT/EARLY(MPH) E 12 E 12 E 11 E 11
WIND 20FT/LATE(MPH) E 11 E 13 E 10 E 11
MIXING HGT(FT-AGL/MSL) 3300 4470
TRANSPORT WND (MPH) E 18 SE 13
VENT RATE (KT-FT) 52800 49170
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-270800-
CENTRAL MOUNTAIN RANGE-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 50 40 70
TEMP (24H TREND) 67 (-3) 84 (+4) 68 86
RH % (24H TREND) 99 (+3) 72 (-6) 97 66
WIND 20FT/EARLY(MPH) E 12 E 9 E 11 E 9
WIND 20FT/LATE(MPH) E 9 E 10 E 9 E 9
MIXING HGT(FT-AGL/MSL) 5930 6320
TRANSPORT WND (MPH) E 12 SE 7
VENT RATE (KT-FT) 59300 37920
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-270800-
CAYEY MOUNTAIN RANGE-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 40 40
TEMP (24H TREND) 70 (0) 80 (+2) 69 83
RH % (24H TREND) 100 (0) 77 (-5) 99 69
WIND 20FT/EARLY(MPH) E 12 E 12 E 11 E 9
WIND 20FT/LATE(MPH) E 10 E 13 E 10 E 10
MIXING HGT(FT-AGL/MSL) 4020 4870
TRANSPORT WND (MPH) E 18 E 13
VENT RATE (KT-FT) 64320 53570
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-270800-
VIEQUES-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 40 20
TEMP (24H TREND) 75 (-1) 87 (+1) 75 89
RH % (24H TREND) 91 (-1) 62 (-6) 91 59
WIND 20FT/EARLY(MPH) E 18 E 18 E 18 E 14
WIND 20FT/LATE(MPH) E 17 E 18 E 17 E 13
MIXING HGT(FT-AGL/MSL) 2720 3300
TRANSPORT WND (MPH) E 22 E 16
VENT RATE (KT-FT) 51680 46200
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-270800-
CULEBRA-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40 30
TEMP (24H TREND) 76 (-1) 88 (+1) 76 89
RH % (24H TREND) 91 (+1) 61 (-7) 92 58
WIND 20FT/EARLY(MPH) E 18 E 18 E 18 E 14
WIND 20FT/LATE(MPH) E 17 E 18 E 16 E 14
MIXING HGT(FT-AGL/MSL) 2830 3390
TRANSPORT WND (MPH) E 22 E 17
VENT RATE (KT-FT) 53770 50850
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-270800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 50 50 40
TEMP (24H TREND) 74 (-1) 90 (+3) 74 91
RH % (24H TREND) 88 (+1) 54 (-6) 90 50
WIND 20FT/EARLY(MPH) E 21 E 18 E 16 E 17
WIND 20FT/LATE(MPH) E 16 E 20 E 14 SE 18
MIXING HGT(FT-AGL/MSL) 4850 4650
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 72750 65100
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-270800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 30 20
TEMP (24H TREND) 75 (-2) 86 (+1) 75 87
RH % (24H TREND) 94 (+5) 63 (-6) 94 61
WIND 20FT/EARLY(MPH) E 19 E 18 E 18 E 14
WIND 20FT/LATE(MPH) E 17 E 18 E 16 E 14
MIXING HGT(FT-AGL/MSL) 2910 3350
TRANSPORT WND (MPH) E 23 E 18
VENT RATE (KT-FT) 58200 53600
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-270800-
ST CROIX-
330 PM AST TUE MAY 26 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 40 20
TEMP (24H TREND) 75 (-1) 87 (+2) 75 88
RH % (24H TREND) 91 (-2) 66 (-5) 91 62
WIND 20FT/EARLY(MPH) E 18 E 17 E 17 E 13
WIND 20FT/LATE(MPH) E 16 E 17 E 17 E 13
MIXING HGT(FT-AGL/MSL) 4040 4170
TRANSPORT WND (MPH) E 22 E 17
VENT RATE (KT-FT) 76760 62550
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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